Improvement in sash-weights



M.- G.. BUR'KHARDT.

MATTHIAS BURKHARDT, OF CINCINNATI, OHIO.

IMPROVEMENT IN SASH-WEIGHTS.

Speciiication forming part of Letters Patent No. 123,551, dated February 13, 1872.

I, MATTHIAS e. BURKHARDT, of cincinnati, Hamilton county, Sta-te ofUhio, have invented a. certain new and useful Improvement in Sash- \\'eights, 0i' which the following is a speciiica tion:

Nature and Objects of Intent/ion.

Description of the Accompanying .Draw-ing. Figure l is a vertical section of a sash-Weight embodying my invention. Fig. 2 is a perspective view of an end piece. Fig. 3 is a vertical section in a plane at right angles to Fig. l.

General Description.

My improved sash-weight is composed of the main body or sleeve A and the end pieces B andBf. The latter are cast separately, before bein g united with the sleeve, in a common twopa-rt iiask, without the employment of a core or chill.7 The form of each end piece is clearly shown in Fi. 2, a halicirele recess, a, be-

in g formed for the reception of the cord, a deep recess, a', for the occupancy ot' the cord-knot which supports the weight, and a tapering shank, a, for the sleeve to embrace. When the pieces B B are put together in the mannershown in Fig. 3 the entire circle necessary for the rope and cord is formed, and its interior surface is smooth and of a shape Well adapted for the reception ot' the cord-knot. The end pieces are connected together by means ofthe sleeve A, which forms the great-- er portion of the Weight. around the shanks c, the piecesB B having been placed in themold'in which the' sleeve is formed. The shrinkage ofthe sleeve in cooling draws the end pieces tightly together, and

the tapering Shanks aff-a" prevent displacenient in use.

Cla-im.

A sash-Weight formed by the combination, in the manner substantially as described, ot'

end .pieces A A and sleeve C, the parts beingV constructed and combined as and for the purpose specified.

In testimony of which invention I hereunto This sleeve is cast. 

